Utility-Oriented Resource Allocation Scheme in LTE-WLAN Heterogeneous Networks
In this paper,a utility-oriented resource allocation scheme(UORA)is proposed to improve network efficiency for LTE-WLAN heterogeneous networks.Isolated resources such as OFDMA subcarriers and WLAN time slots,which are always ignored in existing schemes,are considered in the proposed UORA scheme to give guidance on engineering practice.Aiming at improving user satisfaction,UORA scheme also considers various traffic characteristics and dynamic transmission rate.To guarantee high overall average level of user QoS,the resource allocation problem is formulated as an constrained optimization problem to maximize the total user utility but not total transmission rate.Based on optimization theory,a heuristic iterative algorithm is constructed to solve the problem.Numerical simulation is also adopted to prove the performance enhancement of our proposed UORA scheme compared with previous ones.
LTE-WLAN heterogeneous networks utility-oriented resource allocation scheme (UORA) traffic characteristics utility maximization
Bin Fu Hao Lian Zhiyong Feng Baoling Liu Qixun Zhang
Key Laboratory of Universal Wireless Communications,Ministry of Education;Beijing University of Posts and Telecommunications,Beijing,China
国际会议
南昌
英文
1-15
2013-09-26（万方平台首次上网日期，不代表论文的发表时间）